Tom Bishop, P.E.
EASA Senior Technical Support Specialist
For most service centers the traditional repair services such as electric motor rewinding have been and will continue to be in a state of decline over time. Among the factors leading to this reduction in business are conversions to more efficient motors, improved maintenance of existing motors, incentives to replace with more efficient motors and in some regions a reduction in the industrial customer base. A consequence of this is that there is more competition for a “shrinking pie”. Service center reaction can be to make a comparable reduction in size or become pro-active and seek new business. The objective of this paper is to suggest and detail some of these alternatives, namely value-added repair and service opportunities for service centers that carry with them the added benefit of contributing to optimizing motor reliability.
The opportunities for value-added repairs and services are ever-increasing. Topics covered here are:
- Bearing isolators, increased winding wire area, ball-to-roller/roller-to-ball bearing conversions
- Preventive and predictive maintenance (PM & PdM) services: vibration analysis, condition monitoring, bearing lubrication, electrical testing (IR, amps, volts, kW)
- Motor management
- New premium efficient motors vs. repair and retrofitting of existing motors
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ANSI/EASA AR100
More information on this topic can be found in ANSI/EASA AR100
EASA Technical Manual
More information on this topic can be found in EASA's Technical Manual- Section 2: AC Machines
- Section 3: DC Machines
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